(19)

(11)

EP 1 078 493 A1

(12)

(43) Date of publication: 28.02.2001 Bulletin 2001/09 (21) Application number: 99923238.2 (22) Date of filing: 20.05.1999

(51) International Patent Classification (IPC)7: H04L 12/28, H04L 1/00 (86) International application number: PCT/US9911/121 (87) International publication number: WO 9962/224 (02.12.1999 Gazette 1999/48)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.05.1998 US 86459 P 23.09.1998 US 158778 (71) Applicant: Winnet Mcs, Inc. Sunnyvale, CA 94086 (US)	(72) Inventors: TREADAWAY, Kirk Aptos, CA 95003 (US) LE NGOC, Tho Anjou, Quebec H1K 1Z5 (CA) DENTON, Darryl Sunnyvale, CA 94086 (US) (74) Representative: Bluff, John William  Lloyd Wise, Tregear & Co.,Commonwealth House,1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)